Innovation Facilitated by Universities: Balancing Enterprise and Regional Demands

Table 6

Robustness test for the model of regional data.

Model		Model 6-9 Poisson panel (RE)	Model 6-10 Poisson panel (RE)	Model 6-11 Poisson panel (RE)
Explanatory variables	Coefficients of the range of quality among universities	8.867; (4.904)	8.995; (4.903)	10.182; (4.926)
	Square of coefficients of the range of quality among universities	−8.192; (4.503)	−8.449; (4.525)	−9.309; (4.514)
Control variables	Per-capita internal expenditure for science-and-technology activities	1.836; (9.306)	1.711; (9.612)	1.508; (9.706)
	Number of full-time personnel on R&D positions	0.075; (0.008)	0.074; (0.008)	0.073; (0.007)
	Average score of the scores of the quality of university operations	0.353; (0.407)	0.404; (0.409)	0.341; (0.393)
	Per-capita GDP		9.738; (4.911)	7.471; (3.987)
		Indexes of marketization degree				1.401; (1.616)	1.321; (1.601)
					D11					−0.362; (0.676)
	D12				−0.901; (0.542)
	Constant terms	−1.161	−1.581	−1.728
		(1.462)	(1.632)	(1.630)
	Model	N	186	186	186
		Wald chi^2	140.340	140.805	157.821
		Log likelihood	−409.510	−409.650	−435.593
		p	≤0.001	≤0.001	≤0.001

Note. The values outside and inside the parentheses represent estimated coefficients and standard errors, respectively, while , and represent significance levels of 1%, 5% and 10%, respectively.